The prepared 3D nanoflowers of ruthenium oxide as electrode material showed a high specific capacitance up to 545.2 F g −1 at 0.5 A g −1. Besides, the prepared material as electrode exhibited eminent cycling stability.
This review provides a comprehensive introduction to the application of ruthenium based materials and their composites in supercapacitors, focusing on their synthetic methods, the selection of raw materials, the control of conditions such as temperature, electrolyte, and pH, as well as their electrochemical performances.
Physical and electrochemical characterization of hydrous ruthenium oxide/ordered mesoporous carbon composites as supercapacitor X. Li, H. He Hydrous RuO 2 nanoparticles coated on Co (OH) 2 nanoflakes as advanced electrode material of supercapacitors
Ruthenium dioxide/carbon-based materials Ru-based oxide, a transition metal oxide, is gaining more and more concern as electrode material in SCs. Among Ru-based oxides, RuO 2 is a common candidate for research.
As a group of multi-functional material, Ru-based materials include ruthenium dioxide (RuO 2) and their composites, hydrous ruthenium oxide (RuO 2 · x H 2 O) and their composites, ruthenium oxide (RuO x) composites, and ruthenium (Ru) composites , , .
By using the modified electrode of a RuO 2 · x H 2 O/carbon-black composite electrode, the electrochemical capacitor exhibited the characteristics of higher energy density and more stable power than pure RuO 2 · x H 2 O electrode. The composite exhibited specific energy and outstanding specific power up to 24 Wh kg −1 and 4 kW kg −1.